Sash-fastener



(No Model.)l B. G. LOWREY.

SASH FASTENER.

No. 474,999. Patented May 3, 1899.

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UNITED STATES PATENT OFFICE.

BILL. G. LOl/VREY, OF BLUE MOUNTAIN, MISSISSIPPI.

sAsH-FASTENER. l

SPECIFICATION forming part of Letters Patent No. 474,299, dated May 3,1892.

Application filed March 22, 1892. Serial No. 425.906- (NO UlOdGl-l To@ZZ whom it may concern:

Be it known that I, BILL. G. LowEEY, a citizen of the United States,residing at Blue Mountain, in the county of Tippah and State ofMississippi, haveinvented certain new and useful Improvements inSasl1Fasteners; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to sash-fasteners; and it consists in certain novelfeatures hereinafter described and claimed.

Reference is had to the accompan ying drawing, wherein A represents thewindow-sash.

B represents a flat spring with its lower end b twisted at an angle ofninety degrees from its upper end b. The said upper end is attachedeither to a window-sash directly or to a piece b2, preferably having adat upper su rface b3.

C represents a rack-bar, whiclrmay be either secured to the beading Eofv the win*- dow, as shown, or maybe used as a substitute for thebeading. This rack has a number of teeth c with fiat upperfaces andsloping lower faces. Between these teeth areinclined planes c. Above thepiece b2, attached to the sash, the pawl D may be pivoted. This pawl hasa face CZ, adapted to engage on the upper face of the piece h2 when thesaid pawl is in the position shown in the dotted lines.

The operation of my device is as follows: The pawl D, being under thetooth c2, which is made square at its base for that purpose, the sash islocked. To raise the window move the pawl D to the right to the positionshown in dotted lines and slide the window up until the lower end of thespring B catches on the top of one of the teeth c, the window being atabout the desired height. When the window is let go, it will remainsupported by the spring B. To close the window or to lowerit somewhat,first raise it sufciently to enable the spring B to engage on the uppersurface 0f one of the inclined planes c', when the spring will be thrownout of engagement with the various teeth, and may be lowered to thebottom, when it may be run up again to the desired height; or should itbe desired to lower the window a short distance only the lower end b ofthe spring B may be pressed back with the lingers and the windowlowered, and the spring allowed to move into place to catch the lowertooth. By having the spring bent at right angles it may be readily movedeither to the side or the rear.

The pawl D for locking the Window may be omitted or not, as desired.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

l. In a sash-fastener, the combination, with a rack-bar attached to thewindow-frame and having a plurality of teeth with flat upper faces andsloping lower faces and inclined planes between said teeth,substantially as described, of a spring attached to the sash and adaptedto catch on the upper edges of said teeth and to slide on said inclinedplanes.

2. In a sash-fastener, the combination, with a rack-bar attached to thewindow-frame and having a plurality of teeth with flat upper faces andsloping lower faces and inclined planes between said teeth,substantially as described, of a dat spring with its lower end twistedat right angles to the upper, the said upper end being attached to thesash and the said lower end being adapted to catch on the upper edges ofsaid teeth and to slide on said inclined planes.

In testimony whereof I affix my signature in presence of two witnesses.

BILL. G. LOWREY.

